RIGHT HAND NON-RATCHETING
Page 6A-60 90-884294 OCTOBER 2001
Forward Gear Backlash
CHECKING
1. Apply forward pressure to propeller shaft as follows:
a. Attach puller jaws and puller bolt onto bearing carrier bosses and propeller shaft.
70719
a
b
a-Puller Jaws (91-46086A1)
b-Puller Bolt (91-85716)
b. Torque the puller bolt to 45 lb. in. (5 Nm). Rotate drive shaft three full turns clock-
wise and retorque the bolt to 45 lb. in. (5 Nm).
NOTE: If the bearing preload tool has not already been set up, see “Drive Shaft - Bearing
Preload Tool”, ‘Installation’ section.
2. Install a dial indicator and align the dial indicator pointer so that it is perpendicular to
and touching the “I” mark on the dial indicator tool. Tighten the indicator tool onto the
drive shaft and rotate the drive shaft so that the needle in the dial makes at least one
full revolution and comes to “0” on the dial indicator scale.
57939
a
b
c
d
a
e
f
a-Nuts (4) (Obtain Locally)
b-Threaded Rod [3/8 in. (9.5mm) obtain locally]
c-Dial Indicator Holding Tool (91-83155)
d-Dial Indicator (91-58222A1)
e-Indicator Pointer
f-Backlash Indicator Rod (91-53459) (for 1.75:1)
Backlash Indicator Rod (91-78473) (for 1.87:1 ratio)
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